<HTML>In a message dated 7/3/02 10:13:08 AM Central Daylight Time, t.seay@mail.utexas.edu writes: <BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">I have one piano, a Steinway model L, on which I have to rebush keys every spring because of this problem. It gets a tremendous amount of hard playing every day, but so do all of the other pianos here, most of which don't have this problem. Any ideas about what might be going on? Many thanks. Tom Seay </BLOCKQUOTE> Tom Find out if this piano is being used by one person, or a couple of people, who do a lot of glissando work. I don't know how to solve the problem, other than asking this person to stop doing. But it will at least give you the answer to why it is happening. Just my thought Wim </HTML>